JP2943611B2 - Recording and playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus and, more particularly, to a magnetic disk drive having a structure in which a magnetic disk cartridge is inserted and mounted. In recent years, magnetic disk devices have become thinner, and the insertion opening for inserting a magnetic disk cartridge is narrow. This makes it difficult to push the magnetic disk cartridge into the magnetic disk device with a fingertip.

Therefore, it has been desired to improve the operability of inserting a magnetic disk cartridge.

[0003]

FIG. 16 shows a conventional thin magnetic disk drive 200. As shown in FIG. 2 is a frame, 27 is a front bezel. The frame 2 is provided with positioning projections 201 and 202 for positioning the magnetic disk cartridge 4. In addition, the positioning bezel 201 has a positioning pin 203 with a tapered upper end at the center, and the front bezel 27 has a lower beam 210 as shown in FIG.
And an upper beam 211.

[0004] Both beams 210 and 211 have a
Concave portions 212 and 213 are formed to facilitate pushing the magnetic disk cartridge. Also, the lower beam part 210
Has a concave step portion 214 which is one step lower on the frame 2 side. On the front side of the lower beam portion 210, the concave step portion 214 is provided.
Has a protruding step 215 relatively formed. The concave step portion 214 forms a space 216 on the upper side for accommodating the rear end portion 4b of the magnetic disk cartridge 4 when the magnetic disk cartridge 4 is mounted. As shown in FIG. 16B, the protruding step 215 has a function of hiding a part of the mounted magnetic disk cartridge 4.

In FIG. 16, reference numeral 220 denotes a magnetic disk cartridge mounting mechanism, which has a holder 221. As shown in FIG. 16B, the magnetic disk cartridge 4 has the positioning recess 4d of the lower surface 4c fitted to the positioning pin 203, and the lower surface 2c of the magnetic disk cartridge 4 has the positioning projections 201, 20.
2 and is mounted at a predetermined position while the rear end portion 4b is within the space 216. The mounting operation of the magnetic disk cartridge 4 is performed as described below. When the operator sets the magnetic disk cartridge 4
Is inserted into the holder 221 through the opening 27a with the shutter 4a at the top (see FIG. 1).

With the fingertip 225, the rear end face 4 e of the magnetic disk cartridge 4 is pushed as shown in FIG. The operator can use the fingertip 225 in the recess 2 of the front bezel 27.
Press until it touches 12,213. As a result, the entire magnetic disk cartridge 4 is
Is pushed into.

[0007] The magnetic disk cartridge 4 shown in FIG.
6A, the latch (not shown) is released by the magnetic disk cartridge 4, and the magnetic disk cartridge mounting mechanism 220 starts operating. Magnetic disk cartridge 4 at this time
Is a position where the positioning concave portion 4d is located right above the positioning pin portion 203. The rear end face 4e is the lower beam 2
It is located at a position P ₂ which is a little deviated in the direction of arrow A from the position P ₁ of the edge of the convex stepped portion 215 of the 10. Tip 4i is located at position P _10.

[0008] Magnetic disk cartridge mounting mechanism 220
But works, the holder 221 is lowered vertically in the Z ₂ direction,
Reaching the height H _2. The magnetic disk cartridge 4 descends vertically together with the holder 221 and is mounted as shown in FIG.

[0009]

To insert the magnetic disk cartridge 4 [0005], the rear end surface 4e needs to push to the position P ₂ to overcome the convex stepped portion 215 enters the inside of the front bezel 27. However, when the magnetic disk device becomes thinner and the opening 27a of the front bezel 27 becomes narrower, unless the operator presses the fingertip 225 firmly against the front bezel 27, the magnetic disk cartridge 4 may be used. May not be pushed to the position P ₂ (P ₁₀ ).

As described above, the conventional magnetic disk drive 20
0 indicates that the operability of mounting the magnetic disk cartridge was not good. Therefore, an object of the present invention is to provide a recording / reproducing apparatus which solves the above-mentioned problems.

[0011]

[Summary of the recording and reproducing apparatus according to the invention of claim 1 is a recording medium is accommodated, said recording medium
Storage medium provided with a shutter for exposing or covering
Operate when the container is inserted into the holder to the specified position.
Start and record the mounting of the recording medium container in a predetermined position.
Recording medium container mounting means; and a recording medium container to be inserted.
A shutter that opens the shutter by contacting the shutter
In the recording and reproducing apparatus having the opening lever, the said sheet
The shutter opening lever engages a shutter of the recording medium container.
A configuration having a locking portion for locking, operates in conjunction with the operation of the recording medium holder mounting means, the shutter opened Les
By operating the bar, the shutter opening lever
And a recording medium container pull-in means for pulling the recording medium container locked by the locking portion into a predetermined distance into the holder.

[0012] recording and reproducing apparatus according to a second aspect of the invention, the upper
The recording medium container retracting means is provided with the shutter opening lever.
The cam portion formed on the recording medium and the recording medium container are
Slides when inserted into the
The drive unit provided on the slider for lowering the holder
The slider slides to lower the holder.
When moving, the drive unit of the slider opens the shutter.
Acting on the cam portion of the shutter opening lever, the shutter opening lever
The recording medium container into the holder by a predetermined distance.
It is configured to operate such that

According to a third aspect of the present invention, there is provided a recording / reproducing apparatus.
Holder into which recording medium container containing recording medium is inserted
And the recording medium container is placed in the holder at the predetermined position.
To slide down the holder when inserted
The recording and reproducing device including a slider, the e
To lock a part of the recording medium container inserted in the holder.
A lever on which a locking portion and a cam portion are formed.
A drive unit formed on the lever and driving the cam portion of the lever;
When the slider slides, the drive section moves the drive.
By driving the cam portion of the bar, the lever is raised
The recording medium container is drawn into the holder at the predetermined distance.
Storage media puller configured to operate
It is configured to include a locking mechanism .

[0014]

According to the first aspect of the present invention, the recording medium container pull-in means is provided so that the recording medium container insertion means is inserted into the holder when the recording medium container mounting means starts operating, as compared with the conventional position. , So as to be slightly on the near side. The recording medium container retracting means has a locking portion
Since the shutter opening lever is used , the parts
It is possible to reduce the number.

In the second aspect, the recording medium container is pulled out.
Use the shutter opening lever to move the shutter
Configuration to operate the shutter opening lever
Special members are not required. According to the third aspect , the configuration in which the lever is operated in conjunction with the sliding of the slider acts so as to enable the sliding of the slider over a relatively long distance.

[0016]

1 to 4 show an embodiment of a recording / reproducing apparatus according to the present invention. In each figure, the magnetic disk device 1 is assembled such that a holder 5 into which a magnetic disk cartridge 4 is inserted, a slider 15, and a shield cover 16 are superimposed on a frame 2.

The holder 5 is provided so as to move up and down in accordance with the mounting and ejecting operation of the disk cartridge 4. The top plate 5a is provided with an opening 5b through which the magnetic head portion 8 relatively enters. . A shutter 4a of the disc cartridge 4 is provided on a top plate 5a of the holder 5.
Is rotated to open in association with the cartridge insertion operation, and a latch lever ( shear
The cutter opening lever 6 is rotatably supported.

At the tip of the latch lever 6, a locking claw ( locking portion ) 6a that engages with the shutter 4a while slidingly contacting the front end of the disk cartridge 4 and slides the shutter 4a in the opening direction protrudes. . The latch lever 6
Functions as an ejecting member for pressing the disk cartridge 4 in the ejecting direction (direction B), and is inserted into the holder 5 through the arc-shaped hole 5c of the holder 5 at the tip end having the engaging pin 6a. .

The latch lever 6 is mounted on the top plate 5a of the holder 5.
, And has an arc-shaped cam portion 6b centered on the shaft 5f. A spring retaining hole 6c is formed at a position separated from the shaft hole 6d, into which the shaft 5f is fitted, toward the cam portion 6b. The cam portion 6b locks the slider 15 as described later, and the disk cartridge 4 is inserted into the holder 5 and rotated to release the lock of the slider 15.

Reference numeral 7 denotes a coil spring for urging the latch lever 6. One end of the coil spring 7 is engaged with a spring engaging hole 6 c of the latch lever 6, and the other end is engaged with a spring engaging portion 151 of the slider 15. Therefore, the latch lever 6 is urged in the counterclockwise direction (shutter closing direction) by the tensile force of the coil spring 7,
The slider 15 is urged in the direction B by the tensile force of the coil spring 7.

As described above, since the coil spring 7 is provided to bias the latch lever 6 and the slider 15, the number of components can be reduced as compared with the case where a biasing member is provided for each member. In addition, when the slider 15 is at the eject position shown in FIG. 4, the spring force of the coil spring 7 is the weakest. 15i
And the sliding resistance between the latch lever 6 and the latch lever 6 can be smoothly rotated.

When the slider 15 is slid in the direction A by the ejecting operation, the latch lever 6 rotates from the mounting position shown in FIG. 6 to the ejecting position shown in FIG. When the cam portion 6b is unlocked by the engagement portion 15i at the time when it becomes the strongest, the latch lever 6 rotates vigorously by the spring force of the coil spring 7, and the disc cartridge 4 can be ejected reliably. .

The magnetic head section 8 is arranged in the disk radial direction (A
B), and a lower magnetic head 10 provided on the top surface of the leading end of the carriage 9.
, An arm 11 rotatably supported by the base end 9 a of the carriage 9, and an upper magnetic head 12 provided on the lower surface of the distal end of the arm 11. The carriage 9 is screwed to a lead screw 14 driven by a stepping motor 13 and moves in the A and B directions on the frame 2 in accordance with the rotation of the lead screw to move the magnetic heads 10 and 12 to a magnetic disk (not shown). ) In the tracking direction.

The arm 11 is urged downward by a pressing force of a torsion spring (not shown) provided at the base end 9a of the carriage 9. A contact portion 11a protrudes from the side of the arm 11, and the top plate 5a of the holder 5 contacts the contact portion 11a. That is, before the case is inserted, the arm 11 is pressed upward by the elevation of the holder 5 to separate the upper magnetic head 12 from the lower magnetic head 10.

A slider 15 is provided between the top plate 5a of the holder 5 and the shield cover 16. The slider 15 includes a top plate 15a facing the top plate 5a of the holder 5, and side portions 15b bent downward from both side edges of the top plate 15a.
15c (however, the side part 14b in FIG. 1 is hidden and cannot be seen). A hole 15d for weight reduction is formed in the top plate 15a.

The side portions 15b and 15c of the slider 15 have inclined grooves 15e in which projecting pins 5d projecting from both sides of the holder 5 are fitted, and guide holes 15f for guiding the sliding operation of the slider 15 in the AB direction. Are provided. The guide hole 15 f is formed in a rectangular shape extending in the sliding direction (AB direction) of the slider 15, and has concave portions 2 on both sides 2 a and 2 b of the frame 2 as described later.
c.

Therefore, the slider 15 is provided with the guide hole 15f.
Are slidably engaged with the engagement protrusions 2d, thereby restricting the upward movement, and are combined such that only the slide in the AB direction is permitted. Also, the slider 15
On both sides of the top plate 15a,
a, abutment portions 15o-1 that slidably contact the upper ends of 2b
5r projects laterally. Therefore, the slider 15
The contact portions 15o to 15r are formed on both side surfaces 2a of the frame 2,
By contacting the upper end of 2b, the downward movement is restricted, and the combination is performed such that only the sliding in the AB direction is permitted.

Therefore, a support member for supporting the slider 15 so as to be slidable in the AB direction is not required, so that the apparatus can be made thinner and the number of parts is reduced.
The engagement portions 5e projecting from the center of both sides of the holder 5 are fitted in grooves 2e provided inside the both side surfaces 2a and 2b of the frame 2. Therefore, when the slider 15 slides in the direction B, the holder 5 is moved to the groove 2 where the engaging portion 5e extends in the vertical direction.
Since the movement in the AB direction is prevented by e, the protruding pin 5d descends to the mounting position along the inclined groove 15e.

Further, a mounting portion 15g of the eject button 17 protrudes from the front end of the top plate 15a. The arm 15h extending from the top plate 15a of the slider 15 in the direction A is provided with a hook 15i for hooking the slider 15 bent in a U-shape and a tip of the hook 15i. And a rack 15k that meshes with a damper 18 for reducing the sliding operation of the slider 15.

The holder support 15j of the slider 15
As shown in FIG. 9, only the front end is fitted into a long hole 30 formed in the top plate 5a of the holder 5, and the step 15n of the holder supporting portion 15j abuts on the top plate 5a of the holder 5 to hold the holder. 5 height position is regulated. Therefore, before the disk cartridge 4 is inserted into the holder 5, the top plate 5a of the holder 5 is supported by the step portion 15n of the holder supporting portion 15j and is prevented from being displaced downward. Therefore, the top plate 5a of the holder 5
The top plate 5a is prevented from bending downward even if the processing accuracy varies or external vibration is applied.

Reference numeral 19 denotes a tension spring for pulling the slider 15 in the direction B. One end is hooked on the slider 15, and the other end is hooked on a hook (not shown) projecting from the top plate 5 a of the holder 5. I have. The slider 15 is displaced in the direction B when the case is inserted due to the pressing force of the compression spring 19 and the spring 7 described above. When the eject operation is performed, the eject button 17 is pressed and slides in the direction A.

Numeral 21 denotes an abutment preventing member which adjusts the insertion height position of the disk cartridge 4 so that the end of the disk cartridge 4 does not abut on the lower magnetic head 10 when the disk cartridge 4 is inserted into the holder 5. regulate. The contact prevention member 21 is rotatably supported by a pin 2f on the frame 2 as shown in FIG. Further, the contact preventing member 21 rides on the convex portion 24 provided on the side of the head portion 8 on the frame 2 and
Guide 21a for guiding the guide 21a to an insertion height position where it does not contact the lower magnetic head 10, an arm 21b for supporting the guide 21a so as to be able to move up and down, and a screw 22 screwed onto the frame 2 to fit. An arc-shaped guide hole 21c for guiding the rotation operation, and an arc-shaped fitting hole 21d into which an engaging pin 15m protruding below the engaging portion 15i of the slider 15 is fitted.
And

The contact preventing member 21 is made of synthetic resin and is integrally formed, has a small friction coefficient on the surface of the guide portion 21a, is slippery, and has flexibility so that the arm 21b can be elastically deformed. In addition, since the engagement pin 15m of the slider 15 is directly engaged with the fitting hole 21d, the contact prevention member 21 slides in the AB direction and rotates about the pin 2f.

Therefore, the contact preventing member 21 and the slider 15
No other connecting member is interposed between them, and the installation space is increased by that amount, the rotation range of the contact prevention member 21 is not limited, and the degree of freedom in design is high. Moreover,
Since the number of parts is reduced as compared with the related art, the work efficiency in the assembly process can be further improved. Also, the bearing 23 for bearing the end of the lead screw 14 of the stepping motor 13 can be shifted in the direction B, and the stroke of the head 8 can be lengthened accordingly,
This allows a margin when the magnetic heads 10 and 12 are moved in the tracking direction of the magnetic disk (not shown).

The guide portion 21a has a pair of hemispherical projections 21e (shown by broken lines in FIG. 2) at the bottom. The projection 24 on the frame 2 is provided with a pair of inclined portions 24a for sliding the pair of projections 21e in accordance with the rotation position of the guide portion 21a. Therefore,
When the ejecting operation is performed and the slider 15 slides in the direction A, the pair of protrusions 21e slides on the pair of inclined portions 24a and raises the guide portion 21a to the insertion height of the disc cartridge 4 as shown by a two-dot chain line in FIG. Raise the position to regulate the position. As described above, since the pair of protrusions 21e slide on the pair of inclined portions 24a, the guide portion 21a is prevented from being inclined, and stably moves in a horizontal state.

Further, since the guide holes 21c are prevented from rattling in the vertical direction by the screws 22, the elastically deformable arms 21b function as spring members. As a result, the guide portion 21a is always pressed by the pair of inclined portions 2h, and does not hinder the insertion of the disk cartridge 4 from the pair of inclined portions 2h in the operation process of riding on the pair of inclined portions 24a.

Numeral 25 denotes the loaded disk cartridge 4.
The turntable on which the magnetic disk is placed is rotated at a constant speed by the rotational driving force of the motor 26. A front bezel 27 is provided at the front end of the frame 2 and the shield cover 16.
Is attached. The front bezel 27 has an opening 27a through which the disk cartridge 4 is inserted and removed.
A lid 28 for opening and closing the opening 27a is rotatably provided inside the.

The lid 28 is urged by the spring force of the torsion spring 29 to close the opening 27a, and rotates in the opening direction with the insertion of the disk cartridge 4. A projection 16a is provided at the front end of the shield cover 16 to prevent the cover 28 pressed by the disk cartridge 4 from bending. here,
The operation of the magnetic disk drive 1 having the above configuration will be described.

The magnetic disk drive 1 before the disk cartridge 4 is inserted is in the state shown in FIGS. That is, the slider 15 is locked at the position slid in the direction A. Further, the arm 11 having the upper magnetic head 12 moves up to the disk insertion position together with the holder 5. Further, the latch lever 6 is rotated to the eject position as shown in FIG. 4, and the contact prevention member 21 is rotated to the contact prevention position as shown in FIG.

Now, when the disk cartridge 4 is inserted into the holder 5 from the opening 27a of the front bezel 27, the front end of the disk cartridge 4 moves in the direction A and comes into contact with the contact pin 6a of the latch lever 6. FIG. 8
As shown by the two-dot chain line, the guide portion 2 of the contact prevention member 21
1a rides on the inclined portion 24a of the convex portion 24 on the frame 2 and the guide portion 21a is raised, so that the front end of the disc cartridge 4 is in contact with the guide portion 21 of the contact prevention member 21.
a is slidingly contacted. Therefore, the disk cartridge 4 is guided to the insertion height position where the front end does not contact the lower magnetic head 10.

When the disc cartridge 4 is further pressed in the direction A, the latch lever 6 rotates clockwise as shown in FIG.
Slide in the opening direction. Then, since the cam portion 6b of the latch lever 6 is separated from the engaging portion 15i of the slider 15, the locking of the slider 15 by the latch lever 6 is released. Thus, the slider 15 slides in the B direction by the spring force of the springs 7 and 19. At that time, the slider 15
Since the guide hole 15f is slidably engaged in the concave portion 2c provided on both sides of the frame 2, the upward movement is restricted by the engaging protrusion 2d of the concave portion 2c, The portions 15o to 15r are both side surfaces 2a of the frame 2,
2b is slid in the AB direction with the downward movement restricted by contacting the upper end of 2b.

When the slider 15 slides in the direction B in this manner, the engaging pin 15m of the slider 15 is
d, the contact prevention member 21 rotates counterclockwise when the slider 15 starts sliding in the B direction. That is, immediately before the holder 5 descends, the contact prevention member 21 rotates from the contact prevention position shown in FIG. 5 to the contact release position shown in FIG. 2 around the pin 2f.

Therefore, since the contact preventing member 21 is retracted to the contact releasing position before the disk cartridge 4 descends to the mounting position, the guide portion 21a slides on the inclined portion 24a and moves to the low position on the frame 2. I do. Therefore, the guide portion 21a of the contact prevention member 21 is sandwiched between the disk cartridge 4 and the projection 24 of the frame 2 so that the contact prevention member 2
1 is prevented from turning into a non-rotatable state.

When the slider 15 slides in the direction B,
Protruding pins 5 protruding from both sides of the holder 5 are provided in inclined grooves 15 e provided on both sides 15 b and 15 c of the slider 15.
Since d is engaged, the protruding pin 5d slides on the inclined groove 15e and is pressed downward with the sliding operation of the slider 15 in the direction B. At the same time, the slider 15
The holder support 15j moves from the position shown in FIG. 9 to the position shown in FIG.
0 is opposed to the step 15n of the holder support 15j, and the height regulation is released.

Thus, the holder 5 is lowered from the disk insertion / ejection position shown in FIG. 3 to the disk mounting position shown in FIG. 7, and the magnetic disk in the disk cartridge 4 is placed on the turntable 22. And the holder 5
The arm 11 pivots downward due to the pressing force of the torsion spring and the upper magnetic head 12 descends.
Since the shutter 4a of the disk cartridge 4 engages with the locking claw 6a of the latch lever 6 and slides in the opening direction during the insertion into the holder 5, the magnetic disk 3 is placed on the turntable 25. At the same time, the magnetic heads 12 and 10 contact the recording surface of the magnetic disk.

Thereafter, the turntable 25 is connected to the motor 26
, The magnetic disk rotates together with the turntable 25 and is magnetically recorded and reproduced by the magnetic heads 10 and 12. Next, the ejecting operation of the magnetic disk device 1 having the above configuration will be described.

When ejecting the magnetic disk mounted as described above together with the disk cartridge 4, the eject button 17 is first pressed in the direction A. This allows
The slider 15 has guide holes 15f provided on both sides of the frame 2 and is slidably engaged within the concave portion 2c to form the concave portion 2c.
The upward movement is restricted by the engagement protrusion 2d of the frame 2 and the contact portions 15o to 15r are
2b is slid in the AB direction in a state where it contacts the upper end of 2b and its downward movement is regulated and falling is prevented.

When the slider 15 slides in the direction A as described above, the holder 5 is raised to the disk insertion / ejection position by an operation reverse to the above-mentioned disk cartridge insertion operation. Further, since the fitting hole 21d is directly engaged with the engagement pin 15m of the slider 15, the contact prevention member 21 slides the slider 15 in the direction A and rotates the pin 15 in the clockwise direction (FIG. 5). See). Therefore, as shown by a broken line in FIG. 8, the guide portion 21a of the contact prevention member 21 has a pair of protrusions 21e formed by the inclined portion 24a of the convex portion 24 on the frame 2.
It reaches the contact prevention position after riding.

When the slider 15 moves in the direction A,
The coil spring 7 stretched between the latch lever 6 and the slider 15 is pulled, and the spring force of the spring 7 increases. Then, when the spring force of the coil spring 7 becomes the strongest, the locking of the cam portion 6b by the locking portion 15i is released.
The latch lever 6 pivots vigorously by the spring force of the coil spring 7 so that the disc cartridge 4 can be ejected reliably.

Further, since the holder supporting portion 15j of the slider 15 is returned from the position shown in FIG. 10 to the position shown in FIG. 9, the step 15n of the holder supporting portion 15j is elongated in the holder 5. The top plate 5a of the holder 5 is supported at a distance from the base plate 30 to regulate the height position of the top plate 5a. Thus, after the disk cartridge 4 is ejected from the holder 5, the top plate 5a of the holder 5 is
The top plate 5a is supported by the step 15n of j and is prevented from being displaced downward. For example, even if the processing accuracy of the top plate 5a of the holder 5 is varied or external vibration is applied, the top plate 5a is bent downward and the disk cartridge 4 is inserted. The position can be prevented from lowering.

Next, the main part of the present invention will be described. In FIG. 1, the magnetic disk device 1 has a magnetic disk cartridge mounting mechanism 100 and a magnetic disk cartridge retracting mechanism 101. The mounting mechanism 100 includes the holder 5, the slider 15, and the like. The retraction mechanism 101 includes a drive piece ( drive unit) 15s for the latch lever 6 and the slider 15.
Etc. The driving piece 15s is formed on a part of the hanging arm of the hook 15i.

As shown in FIG. 12, the latch lever 6
It has a substantially inverted L-shape, has a locking claw 6a at the tip, has a tongue piece 6e at an intermediate position, and has a cam 6b at the base side.
And a cam portion 6f. As shown in FIG.
The latch lever 6 has an edge 6g extending in the direction of the shaft hole 6d from the end 6b- ₁ of the arcuate cam portion 6b.

The edge 6g has a convex triangular shape when viewed from the side of the arcuate cam portion 6b. Of the triangle, the oblique side of the top 6g- ₁ and the end 6b- ₁ of the arc-shaped cam 6b constitutes the cam 6f. The end 6f _{-1 of the} cam 6f is closer to the locking claw 6a than the end 6b _-1 by a dimension a (about 0.4 m).
m) It sticks out.

As shown in FIG. 13A, when the latch lever 6 is driven by the drive 15s of the slider 15 as shown in FIG.
(A), the rotational position when the driving-shaped 15s of the slider 15 has reached the end 6b _-1 arcuate cam portion 6b (the locking claw 6a is located at the position Q ₁₎ I'll think about it. The cam portion 6f has a small angle α (about 5 to 7) in the clockwise direction with respect to the line 102 in the
Degree) is inclined.

The arc-shaped cam portion 6b of the latch lever 6
And the driving piece 15 s of the slider 15, the latch lever 6 is rotated clockwise by the insertion of the magnetic disk cartridge 4 to the position shown in FIG. 13A (the position where the locking claw 6 a is located at the position Q ₁ ). when reached the), looking at the magnetic disk cartridge 4, as shown in FIG. 11 (a), the rear end surface 4e is slightly short of the position P ₀ than P _1, the tip portion 4i slightly short of the position P ₁₀ when inserted up to the position P _9, arcuate cam portion 6b are determined so departing from the driving piece 15s.

The driving piece 15s and the cam portion 6f are provided in a second aspect.
The interlocking mechanism is configured. Next, the operation when the magnetic disk cartridge 4 is mounted will be described with a particular focus on the operation of pulling in the magnetic disk cartridge 4. The operator inserts the magnetic disk cartridge 4 and
As shown in FIG. 1, the rear end face 4e is pushed and pushed with the fingertip 225 (see the portion 105 in FIG. 15A).

[0057] Latch lever 12 is located at the rotational position shown in FIG. 12, the tip is located at position Q _0. When the magnetic disk cartridge 4 is inserted, as shown in FIG. 12, the locking claw 6a is set in the recess 4f. When the magnetic disk cartridge 4 is further inserted, the latch lever 6 is pushed by the magnetic disk cartridge 4 against the spring 7 and rotated clockwise (FIG. 15B).
Section 110).

When the latch lever 6 is rotated clockwise, the locking claw 6a enters the space 4g on the back side of the front end 4a- ₁ of the shutter 4a. The shutter 4a is moved to be in the direction X ₁ pushed by the tip portion of the latch lever 6a, the shutter 4a is opened (see FIG. 15 (C)). Even after the shutter 4a reaches the open position, as shown in FIG. 13A, the locking claw 6a has entered the space 4g.

The magnetic disk cartridge 4 is
(A) and the position shown in FIG. 13 (A) (rear surface 4e is located at the position P _0, the tip portion 4i is located in position P _9, the positioning concave portion 4d is deviated slightly in the direction B from the positioning pin 203 ), The cam 6b is driven
5s, the slider 15 is released from the latch, slides in the direction B by the spring force of the spring 19, and the magnetic disk cartridge mounting mechanism 100 starts operating by the spring force.

When the mounting mechanism 100 starts operating, the operation of pushing the magnetic disk cartridge 4 is no longer necessary. Here, the insertion position P ₀ of the magnetic disk cartridge 4 when the operation of the mounting mechanism 100 is started is a position that is a dimension b (about 1.2 mm) before the position P _{2 in the} conventional case.

For this reason, it is not necessary to push the fingertip 225 until the fingertip 225 is strongly pressed against the front bezel 27, and the operation of pushing the magnetic disk cartridge 4 is easier than before.
The slider 15 slides by a distance c in the B direction (FIG. 15).
(D)). The following two operations are performed by sliding of the slider 15. First, the magnetic disk cartridge retraction mechanism 101 operates.

[0062] That is, of the slider 15 is in the above distance c, in the process of sliding the first half of the distance d, the driving piece 15s which moves in the B direction pushes cam portion 6f in X ₂ direction. Here, the pressure angle β when the driving piece 15s presses the cam portion 6f is small as shown in FIG. Also, spring 1
9 is in a state still sufficiently stretched, the force F ₁ which moves in the B direction of the slider 15 by the spring 19 is strong.

[0063] Thus, the cam unit 6f is smoothly pushed X ₂ direction, the latch lever 6, from the state shown in FIG. 13 (A), are further approximately 3 degrees rotated clockwise, FIG 13 (B ) (See part 111 in FIG. 15B). Engaging claws 6a is shown in FIG 13 (B), extending from the position Q ₁ to the position Q _2. At this time, the latch lever 6 rotates in a state where the locking claw 6a locks the leading end 4a- ₁ of the shutter 4a, and draws the magnetic disk cartridge 4 into the holder 5.

The magnetic disk cartridge 4 is pulled in the dimension e (about 1.2 mm) in the direction of the arrow A, and the state shown in FIG.
As shown in FIG.
Opposite to 3, the rear end surface 4e is led to the position P _1, the tip portion 4i
There reaches the position P ₁₀ (see in FIG. 15 (A), the portion 106). When the driving piece 15s passes through the cam portion 6f, the clockwise rotation of the latch lever 6 stops, and the operation of the magnetic disk cartridge retraction mechanism 101 is completed.

That is, in the latter half of the sliding of the slider 15, the driving piece 15s does not act on the cam portion 6f, so that the mechanism 101 does not operate. Here, it is conceivable to operate the mechanism 100 using the sliding of the slider 15 over the entire length c. However, in this case, near the end of the sliding of the slider 15, the spring force of the spring 19 becomes weak, and there is a possibility that it becomes difficult to reliably operate the mechanism 100.

However, in this embodiment, the mechanism 100
Because the first half of the slider 15 is used to operate the mechanism 15, that is, the portion where the spring force of the spring 19 is strong is used, the operation of the mechanism 100 does not stop halfway. , Mechanism 100 operates reliably to the end.
Second, the magnetic disk cartridge mounting mechanism 100 operates.

[0067] That is, in the process of the slider 15 is slid over a distance c, the inclined grooves 15e guides the protruding pin 5d, the holder 5, and drops to Z ₂ direction than the height H _1, the height H ₂ (see FIG. 15E). As a result, the magnetic disk device 1 changes from the state shown in FIG. 11A to the state shown in FIG. 11B and finally to the state shown in FIG. Be attached.

By the ejecting operation performed by pressing the eject button 17 in the direction A, the mounting mechanism 100 and the retracting mechanism 101 operate in the reverse direction and in the reverse order during the mounting operation. Looking at the retraction mechanism 101,
When the latch lever 6 rotates counterclockwise, the magnetic disk cartridge 4 is slightly moved in the direction B in the holder 5.

However, this operation is performed in the latter half of the ejecting operation. At this time, the holder 5 has started to move upward, and the positioning recess 4 d is
And the rear end portion 4b is convex
It is located at a higher position. For this reason, the operation of ejecting the magnetic disk cartridge 4 proceeds smoothly from the state of FIG. 11C to the state of FIG. 11A through the state of FIG. 11B.

Further, since the locking claw 6a enters the back side of the tip 4a- ₁ of the shutter 4a, even when a large shock is applied to the magnetic disk device 1 from outside, the shutter 4a is moved from the locking claw 6a. There is no risk of coming off. Therefore, the opened shutter 4a is unnecessarily closed, and the magnetic heads 10, 1 are closed.
There is no danger of damaging 2.

Next, a modified example will be described. The present invention is not limited to the configuration in which the shutter opening / closing lever and the latch lever are integrated as in the above embodiment. The present invention can be realized even if the latch lever and the shutter opening / closing lever are separately provided by providing a mechanism for operating both levers in relation to the operation of the recording medium container mounting means.

The magnetic disk cartridge retracting mechanism may be linked to the lowering of the holder 5. The magnetic disk cartridge retracting mechanism can also lock and retract a portion of the magnetic disk cartridge other than the shutter. Slant groove 1 of slider 15
By providing a horizontally long groove at the end of 5e, the distance for retracting the magnetic disk cartridge can be increased, and the retraction can be completed before the holder 5 starts descending.

The present invention can also be applied to an automatic mounting device in which a motor starts when a magnetic disk cartridge is inserted halfway and mounting is automatically performed. In this case,
The end position of the pull-in of the magnetic disk cartridge by the motor can be determined roughly to some extent, so that the automatic mounting device can be configured to be more reliable than the conventional one. The present invention is also applicable to an apparatus for mounting a magneto-optical disk cartridge, an optical disk cartridge, and a magnetic tape cassette.

[0074]

As described above, the invention of claim 1 is described.
Has a configuration in which a recording medium container retracting means is provided.
Fit, only necessary pushed the recording medium holder until slightly before the position than in conventional into the holder, the mounting of the recording medium holder can be performed with good operability as compared with the conventional course,
The recording medium container retracting means includes a shutter having a locking portion.
Since the opening lever is used, the recording medium container
No special members are required to retract the
The number of parts can be reduced, the structure can be simplified, and the size can be reduced
To reduce processing man-hours and manufacturing costs
I can do it.

According to a second aspect of the present invention, a shutter opening lever is provided.
Slide the slider to retract the storage medium.
Shutter opening lever.
No special members are required to operate the
Te, can reduce the number of parts, can be in easy single structure, also,
It can be made small, and also reduces the number of processing steps and manufacturing costs.
Can be achieved. Also, make sure that the slider slides securely.
To retract the recording medium container of the shutter opening lever
Operation of the shutter opening lever for reliable operation
I can make it.

[0076] In claim 3, interlocked with the sliding of the slider.
Lever to operate the lever
A relatively long distance slide can be used, and
Reliable and stable operation of pulling in the recording medium container
I can do it.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an embodiment of a disk drive according to the present invention.

FIG. 2 is a plan view in a state where a holder and a shield cover are omitted.

FIG. 3 is a side view for explaining operations of a holder, a slider, and a frame.

FIG. 4 is a plan view showing a holder and a slider before a disk cartridge is inserted.

FIG. 5 is a plan view in which a holder and a shield cover before a disk cartridge is inserted are omitted.

FIG. 6 is a plan view showing a holder and a slider when a disk cartridge is inserted.

FIG. 7 is a side view when a disc is mounted.

FIG. 8 is a rear view showing the operation of the contact prevention member.

FIG. 9 is a side view of a holder support that supports the holder.

FIG. 10 is a side view for explaining an operation of lowering a holder to a mounting position.

FIG. 11 is a diagram illustrating a state where the magnetic disk cartridge is mounted while being pulled in;

FIG. 12 is a diagram showing a relationship between a magnetic disk cartridge and a latch lever when a magnetic disk cartridge is inserted.

FIG. 13 is a diagram showing an operation when the magnetic disk cartridge is pulled in.

FIG. 14 is an enlarged view showing a state where a driving piece is pushing a cam.

FIG. 15 is a diagram illustrating the operation of each member during the mounting operation of the magnetic disk cartridge.

FIG. 16 is a diagram showing a conventional example of a magnetic disk drive.

FIG. 17 is an enlarged perspective view showing a part of the front bezel in FIG. 16;

[Explanation of symbols]

 Reference Signs List 1 magnetic disk device 2 frame 4 magnetic disk cartridge 4a shutter 4b rear end portion 4c tongue portion 4d positioning concave portion 4e rear end surface 4f concave portion 4g space portion 4i distal end portion 5 holder 6 latch lever 6a locking claw 6b cam portion 6c spring hook hole 6d Shaft hole 6e Tongue 6f Cam 6g Edge 8 Magnetic head 9 Carriage 10 Lower magnetic head 11 Arm 12 Upper magnetic head 15 Slider 16 Shield cover 17 Eject button 19 Latch lever 21 Contact prevention member 24 Convex part 25 Turntable 100 Magnetic disk cartridge mounting mechanism 101 Magnetic disk cartridge retraction mechanism 200 Magnetic disk device 201, 202 Positioning convex step 203 Positioning pin 210 Lower beam 211 Upper beam 212, 213 Concave 214 Concave step 2 15 Projected Step 216 Space 220 Magnetic Disk Cartridge Mounting Mechanism 221 Holder 225 Fingertip

Claims (3)

(57) [Claims] 1. A recording medium containing a recording medium,
Storage medium provided with a shutter for exposing or covering
Operate when the container is inserted into the holder to the specified position.
Start and record the mounting of the recording medium container in a predetermined position.
The recording medium container mounting means and the shutter of the inserted recording medium container
A shutter opening lever for opening a shutter , wherein the shutter opening lever is configured to lock the recording medium container.
It has a locking portion for locking the recording medium, operates in relation to the operation of the recording medium container mounting means ,
By operating the shutter opening lever,
A recording / reproducing apparatus comprising a recording medium container retracting means for retracting the recording medium container locked by the locking portion of the shutter opening lever into the holder by a predetermined distance. 2. The recording medium container retracting means,
A cam portion formed on the shutter opening lever and the recording portion
The medium container is inserted into the holder up to the predetermined position.
Provided on a slider that sometimes slides to lower the holder
Drive unit, and the slider holds the holder
When sliding to descend, the drive unit of the slider
Acts on the cam portion of the shutter opening lever, and
The opening lever is attached to the recording medium container inside the holder.
That it is operated to pull in a predetermined distance
2. The recording / reproducing apparatus according to claim 1, wherein: 3. A recording medium container in which a recording medium is stored.
The holder to be inserted and the recording medium container are inserted into the holder to the predetermined position.
Slides into the holder when it is inserted.
And a part of the recording medium container inserted into the holder.
A lever on which a locking portion and a cam portion for locking are formed;
Is formed on the slider, drive to drive the said cam portion of said lever
A moving part, and the driving part is provided when the slider slides.
Drives the cam portion of the lever, whereby the lever
The recording medium container is placed in the holder at the predetermined distance.
Storage media storage configured to operate only by pulling in
Characterized in that it is provided with a body retraction mechanism
Recording and reproducing device.